The CONSORTIUM LEADER undertakes to fulfill its leadership tasks, duties and functions with commercially reasonable care and diligence. The CONSORTIUM LEADER’S liability is limited to the choice of personnel assigned to the fulfillment of leadership tasks. Any personal liability shall be excluded; this does not apply in case of intentional acts. In any event, the total aggregate liability of the CONSORTIUM LEADER under its LEADERSHIP function shall be limited to 50 % of the LEADERSHIP FEE, irrespective of the legal basis of such claim(s).